Half to henry mertens



UNITED STATES PATENT OFFICE.

HENRY BROCKMANN, JR., OF HOMEW'OOD, ILLINOIS, ASSIGNOR OF ONE- HALF TOHENRY MERTENS, OF SAME PLACE.

CU LTIVATO R.

SPECIFICATION forming part of Iletters Patent No. 623,071., dated April11, 1899.

Application filed October 17, 1898.

To all whom it) may concern:

Be it known that I, HENRY BRooKMANN, Jr., a citizen of the UnitedStates, residing at IIomewood, in the county of Cook and State ofIllinois, have invented certain new and useful Improvements inCultivators; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art 'to which it appertains to make and use the same.

My invention relates to a novel construction in a cultivator, the objectbeing to provide a simple, cheap, efficient, and light device of thischaracter; and it consists in the features of construction andcombinations of parts hereinafter fully described and claimed.

111 the accompanying drawings, illustrating my invention, Figure 1 is atop plan view of a cultivator constructed in accordance with myinvention. Fig. 2 is a side elevation of same. Fig. 3 is a rearelevation of same. Fig. 4 is a detail sectional view on the line 4 4 ofFig. 1.

Referring now to said drawings, A indicates a beam consisting,preferably, of a T- iron, of which the flange 1 is cut away on anincline from the middle toward the ends. At the middle portion of saidbeam A, I provide an upright B, which is bifurcated at its upper end, asat 2. Perforations 3 are pro vided in said flange 1, between the middleand ends thereof, which are adapted to receive the hooked ends 4 of rods5, secured at their other ends to the pole 6. A segment 7 is mountedonsaid pole and enters said bifurcated portion 2 of said upright B. Saidsegment is provided with a plurality of perforations 8, which areadapted to receive the set screw 9, passing transversely through saiduprightB, whereby said pole 6 is adapted to be adjusted according to theheight of the party drawing the cultivator. A plurality of rods 10 arepivotally mounted at one end on the flange 11 of said T-iron A by meansof the bolts 12, and at their other ends carry the downwaidly-extendingtriangular blades or plows 13. Between their ends said rods Serial No.693,763. (No model.)

are adj ustably held in position relative to each other by means ofhooks 14, embracing said rods and having screw-threaded ends passingthrough slots 5 in plates 16, pivoted at .one end to the outer endsof-beams 17, which in turn are pivotally mounted at their inner endsupon the end portions of the flange 11. Said plates 16 are adapted toproject over one another at their free ends, and thereby form anextensible plate or beam which is adapted to be held rigid by means ofone of said hooks l4,the stem of which passes through the slots in bothsaid plates and receives a thumb-screw 18, by means of which said platesare clamped upon each other and upon the middle rod 10. The remainingbooks 14 are likewise adapted to receive thumb-screws on their stems toclamp said rods 10 in position. Said rods 10 are preferably of difierentlengths, so as to permit them to be adjusted in close 'relative positionfor obvious reasons, as shown in dotted lines in Fig. l. I

My device is obviously very adjustable in every way and is extremelysimple, durable, and light. It is also very cheap to manufacture.

I claim as my invention- In a cultivator, the combination with a beamand a plurality of rods carrying blades pivotally mounted thereon andmovable horizontally, of slotted plates mounted upon said rods and towhich the latter are adj ustably secured by means of clamps passingthrough said slots therein, said plates being relatively adjustable,whereby the blades can be adjusted in position with relation to eachother, and a draft-beam pivotally secured to said beams and adapted tobe adjusted in position thereon to regulate the depth to which saidblades break ground, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

HENRY BROCKMANN, JR.

Witnesses:

RUDOLPH WM. LoTz, ERWIN J. LOTZ.

